Fill in the response.  [+] What was the half.com commission rate? [+] In January 2009, the commission was 15% if the fixed selling price was $50 or less, 12.5% if the price was more than $50 but less than $100.01, 10% if the price was more than $100 but less than $250.01, 7.5% if the price was more than $250 but less than $500.01, and 5% if the price was more than $500. [+] What did the seller do after the purchase? [+] 
The seller was responsible for shipping any item within three business days of a sale and paying the actual shipping costs.